added make mrproper

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@426 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter05/kernel-inst.xml

@@ -15,6 +15,7 @@ The kernel configuration file is created by running the following command:
 
 <blockquote><literallayout>
 
+	<userinput>make mrproper &amp;&amp;</userinput>
 	<userinput>yes "" | make config &amp;&amp;</userinput>
 	<userinput>make dep &amp;&amp;</userinput>
 	<userinput>cd $LFS/usr/include &amp;&amp;</userinput>